(2004). To Improve Health and Health care. New Jersey: Jossey-Bass.
Dyfyniad Arddull ChicagoTo Improve Health and Health Care. New Jersey: Jossey-Bass, 2004.
Dyfyniad MLATo Improve Health and Health Care. New Jersey: Jossey-Bass, 2004.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.